Which derived quantity is expressed in pascal?

Which expression represents the SI unit of speed?

The unit coulomb can be expressed in terms of base units as:

The unit of area is derived by multiplying:

Which SI prefix represents 10^3?

Which of the following is a derived unit?

Which prefix should be used for 10^-6?

A derived quantity is one that:

Which prefix has the symbol n?

Which option contains only SI base units?

Why are prefixes used with SI units?